Best Time to Fly CLT to SEA: On-Time Stats by Hour & Airline
Charlotte Douglas International → Seattle/Tacoma International
Data through July 2026 · Last updated October 18, 2026
1,296 flights were scheduled from Charlotte (CLT) to Seattle (SEA) in the last 12 months, and 69.6% of those that flew arrived on time, 8.0 points below the US average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (77% on time) and July the worst month (58%).
The cancellation rate was 1.0% (US average 1.8%).
CLT to SEA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 69.6% | 60 min | 1.0% | 1,296 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLT to SEA
On-time arrival % by scheduled departure hour (local time), 2,607 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 85.7% | 0.0% | 70 |
| 8am–9am | 76.5% | 4.8% | 125 |
| 9am–10am | 82.9% | 0.6% | 530 |
| 10am–11am | 83.3% | 0.0% | 60 |
| 11am–12pm | Limited data | 8 | |
| 12pm–1pm | Limited data | 15 | |
| 1pm–2pm | Limited data | 26 | |
| 2pm–3pm | 75.4% | 1.5% | 66 |
| 3pm–4pm | 65.1% | 0.3% | 325 |
| 4pm–5pm | 66.9% | 0.8% | 468 |
| 5pm–6pm | 65.2% | 1.1% | 183 |
| 6pm–7pm | 67.7% | 0.6% | 493 |
| 7pm–8pm | 70.6% | 0.0% | 34 |
| 8pm–9pm | 51.0% | 2.0% | 204 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CLT to SEA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 73.0% | -1.8 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 66.3% | -8.5 pts | 0.0% | 84 |
| Summer peak (Jun 15 - Aug 15) | 59.0% | -15.9 pts | 0.8% | 603 |
| All other days | 74.8% | — | 1.0% | 1,883 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).